Vitara 4WD L4-2.0L (2003)
Fuel Tank Pressure Release Valve: Testing and Inspection
Fuel Tank Pressure Control Solenoid Valve/Circuit Inspection
Fuel Tank Pressure Control Solenoid Valve and Its Circuit Inspection
1. Disconnect vacuum hose from tank pressure control solenoid valve (1).
2. Start engine and run it at idle speed.
3. With finger placed against disconnected vacuum hose (2), check that vacuum is applied. If it is not applied, clean vacuum passage by blowing
compressed air or replace vacuum hose.
4. Connect SUZUKI scan tool (1) to DLC (2) with ignition switch OFF.
a. Turn OFF tank pressure control solenoid valve by using SUZUKI scan tool with ignition switch ON after clearing DTC.
In this state, blow nozzle "A" (4). Air should come out of filter (3) and not out of nozzle "B" (5).
b. Turn ON tank pressure control solenoid valve by using SUZUKI scan tool (1) with ignition switch ON. In this state, blow nozzle "A" (3). Air
should come out of nozzle "B" (4) and not out of filter (2).
5. If check results are as described above, tank pressure control solenoid valve and its circuit are in good condition, connect vacuum hoses securely.
If not, check tank pressure control solenoid valve, wire harness and connectors.
